Part Number:BQ34Z100-G1
Hi,
it's the first time that customers use BQ34Z100-G1. there seems like something wrong with SOC.
there are 3s lithium battery, for each: 3V-4.2V, 2200mAH
for project reasons, customers didn't use bqstudio but I2C.
configuration in dataflash is as below
1 set dasign capacity as 2200mAH, set design energy as 27720(2200*12.6)
2 set number of series cell as 3
3 set volsel as 1
4 Voltage Divider= 19237mv (it is around 4200*3*1.5=18900 and he calibrated it)
besides that, is there any other spec need configured?
5 set QMax as 2200mAH
then, he got SOC by 02 demand.
Abnormal result1: when V=12.6V, SOC=100, then it declined rapidly(10% per minute), after decline by 20%, SOC appeared as 0. only by restarting the battery, the real SOC can be get (estimated by the voltage ratio). After that, it declined rapidly again and suddenly turned to 0.
Abnormal result2: the customer connected it with adapter, when voltage < 11.4V, SOC and RM kept as 0. SOC grown after V>11.5V.
could you please tell me where the problems are?
thank you!
